一、盐渍土概说在我国广大西北地区,分布着许多大面积的盐渍土。一些调查研究资料表明,这种位于内陆干旱地区的盐渍土,主要是从岩石中分解出来的少量易溶盐类被地下水溶解带到内陆湖泊或洼地的途程中,水分经由土中毛细管不断上升和蒸发,盐分则不断在地表附近土层中积聚起来而形成的。盐渍土中所 I. Saline Soil In general, in the vast northwest region of China, there are many large-scale saline soils. Some investigations and research data indicate that this saline soil in the inland arid region is mainly caused by dissolution of a small amount of easily soluble salts from rocks dissolved in groundwater into inland lakes or depressions. Water passes through the capillary in the soil. As it continues to rise and evaporate, salinity continues to accumulate in the soil layers near the surface. Saline Soil Institute